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10. DIMENSIONS & RATINGS
A. BOILER DIMENSIONS
B. BOILER RATINGS
Table 10.2: Boiler Ratings
Boiler
Model Number
PO-70
PO-70A
1
PO-84
PO-84A
1
1. Models PO-70A and PO-84A designate boilers using an alternate minimum vent length of 25
equivalent feet.
2. Firing Rate is based on commercial standard #2 fuel oil with a heating value of 140,000 Btu/gallon.
Burner input is based on a maximum altitude of 2,000 ft - for higher altitudes consult the factory.
3. Heating Capacity ratings are based on U.S. Government standard tests, with 13.0% CO ² .
4. The Net I=B=R Output Ratings are based on a pick-up allowance of 1.15. Consult the factory before
selecting a boiler for gravity hot water installations or installations having unusual piping and pick-up
requirements, such as intermittent system operation and extensive piping systems.
5. Heating Capacity, Net I=B=R Output, and Annual Fuel Usage Efficiency (AFUE) are based on testing
required by the FTC and are 3rd Party Verified.
Table 10.1: Weights and Water Capacity
* The Total Weight includes the acoustic shroud and burner which are
shipped separately.
2
Boiler Input
(GPH)
(MBH)
0.50
70
0.50
70
0.60
84
0.60
84
Total
Shipping
Weight*
Weight
(Lbs)
(Lbs)
407
352
Heating
Net I=B=R
Capacity
3,5
Output
(MBH)
(MBH)
64
56
65
56
77
67
77
67
DIMENSIONS & RATINGS
Water
Operating
Capacity
Weight
(Gallons)
(Lbs)
13.2
517
Seasonal
4,5
Efficiency
5
(AFUE)
91.7%
92.0%
91.3%
91.8%
37
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